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Untriaged
Permalink CVE-2026-53525
7.4 HIGH
  • CVSS version (CVSS): 3.1
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): High (H)
  • Privileges Required (PR): None (N)
  • User Interaction (UI): None (N)
  • Scope (S): Unchanged (U)
  • Confidentiality (C): None (N)
  • Integrity (I): High (H)
  • Availability (A): High (H)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): High (H)
  • Modified Privileges Required (MPR): None (N)
  • Modified User Interaction (MUI): None (N)
  • Modified Confidentiality (MC): None (N)
  • Modified Scope (MS): Unchanged (U)
  • Modified Integrity (MI): High (H)
  • Modified Availability (MA): High (H)
created 1 week, 4 days ago Activity log
  • Created suggestion 1 week, 4 days ago
WeeChat has Non-Constant-Time Password Hash Comparison in Relay Authentication

WeeChat (Wee Enhanced Environment for Chat) is a free chat client. In versions 0.3.1 through 4.9.0, the WeeChat relay authentication uses non-constant-time string comparison functions (weechat_strcasecmp and strcmp) to verify password hashes and plaintext passwords. An attacker can exploit timing differences to extract the server-computed hash character by character, then authenticate using the correct hash without knowing the password. Version 4.9.1 fixes the issue.

Affected products

weechat
  • ==>= 0.3.4, < 4.9.1

Matching in nixpkgs

pkgs.weechat

Fast, light and extensible chat client

pkgs.weechatScripts.autosort

autosort automatically keeps your buffers sorted and grouped by server

  • nixos-unstable 3.10
    • nixpkgs-unstable 3.10
    • nixos-unstable-small 3.10
  • nixos-26.05 3.10
    • nixos-26.05-small 3.10
    • nixpkgs-26.05-darwin 3.10

pkgs.weechatScripts.weechat-autosort

Autosort is a weechat script to automatically or manually keep your buffers sorted

  • nixos-unstable 3.9
    • nixpkgs-unstable 3.9
    • nixos-unstable-small 3.9
  • nixos-26.05 3.9
    • nixos-26.05-small 3.9
    • nixpkgs-26.05-darwin 3.9

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